If you’re in the market for a single barbell instead of separate dumbbells, this one combines seven barbells and seven curl bars in one space-saving setup. With the turn of a dial, switch between different weights (20, 30, 40, 50, 60, 70 and 80 lbs) and perform a variety of full-body exercises. It’s even upgradable to 120 lbs., with additional plates that are sold separately.
SelectTech with curl bar,
$549 by Bowflex